Heating device for automobile windshields



Feb. 16 1926. 1533 727 I w. c. MAGRANIS ET AL HEATING DEVICE FOR AUTOMOBILE WINDSHIELDS Filed May ,2, 1925 To 4222' whom it may concern:

lie it known that We, /Vnnnnn G. .MA- GRANIS, residing at Northampton, in the county of Hampshire sud State or Messs chusetts, end -FRED G. CHASE, residing at Mittineegue, in the county of it einpclen and State of Massachusetts, both citizens of the United. States of America, have jointly invented a new and useful Heating Device for Automobile Vifjindshields, of which the following is a, specification.

Gm invention relates to improvements in devices applicable/to Wind-shields, Windows, and the like, vvhereon ice or vapor is liable to form and collect, and consists essentielly or a certain peculiar heating-unit which is provided with e frame, and an arm oriented to he connected with s suitably positioned and supported spindle, such heating-unit being connected by on electrical conductor with an electric battery, such as that commonly carried by automobile driven by an internal-co1nbustion engine, all as hereinafter set forth.

The primary object of our invention is to produce ecomperatively simple and inexpensive heating device, of the character described. which can be readily attached to the spindle of on automatic Wind-shield cleaner, or to any other spindle that enables said device to be oscillated thereon or therewith close to or in direct contact with the transparent member or glass of s Windshield or Window, and "with which the current from on electric battery is converted into host for the purpose of Werining said glass, to the end that the formation of ice or vapor thereon is prevented, or the some if elreadv formed is dissipated there-from.

This device, heing on the inside of the windshield, does not interfere With the ordinerv Wiper on the outside of said Windshield, although applied toor mounted on the some spindle upon which said "Wiper is mounted, and is generally used in conjunction with such exterior vvijoer, although it might he employed independently of or disassociated from the same. In other Words, this device has no dependence on the ordinary type of Windshield wiper.

Another ohj'ect is provide heating device, the 'vvind shields or Windows of automotive vehicles and power-propelled croft, which device afiords sufiicient heat or to dissipete or preven the forma- Serial 1%, 331- 132.

erates only snfiicient heat, the heatingunit of said device to raise tempers ture of the glass, with which said heatingunit is in contest, to an extent sufficient to "prevent the formation thereon of ice or vspor, or to dissipate ice or steam therefrom if it has collected thereon b fore the current is turned to thence-ting device.

Dther objects advantages will eppeor i'mthe course of the following description.

We attain the objects and secure the advsntages of our invention by means illustrated in the sccoznponving drawings, in which- 'gnre 1 is elevation of fragmentary portions of the Wind-shield end supporting parts therefore? an automobile as vievved from the interior, and of our heating device in operative position relative to said Windshield; 2, e reer elevation of the hosting device; Fig. 3, s side elevation of said device, and, Fig. l, a front elevation of the device.

Similar reference characters designate similar parts throughout the several views.

The heating device illustrated in the lost three views is on a much larger scale, of course, than it is in the first vie s 'llre portions of the Wind-shield eppeering in Fig. 1 comprise upper and under tronspcrent or pistes or sections 1 end 2, respectively, which are mounted in frame 8 of any usual construction, en out-emetic cleaner l attached to the top roll said frame on the inside end adjacent to the lefthend end thereof, such cleener consis ng in part of spindle which carries an oscillating Wiper on the outside of said upner section, but the some is hidden by the heet= ing device on the inside of seidupper section. The QfOlB- d spindle 5 in ifigs. 3 4i. i -ese ports and nowhere are shown merely to illustrate one no lies-- 1 of our invention, it being un-d steed,

not limited to entomohiles,nor in conand even beyond such area, Without i nereinhefore intimated, that the device is strip 6 adjacent to the upper end thereof to be described, a support or frame 8 to which said insulating strip 6 is attached, and an. arm 9 secured at one terminal to said frame and adapted to have the other terminal connected with the spindle 5.

As a convenient means for connecting the arm 9 with the spindle 5, we provide' a coupling 10 and two screws 11 and 12. The coupling 10 is bored axially to receive the rear terminal of the spindle 5, and the screw 12 is tapped through said coupling, radially, in position to engage said spindle after the coupling has been placed thereon, and rigid 1y secure the coupling to the spindle. At the opposite end the coupling 10 is tapped axially to rece ve the screw 11, and has a transverse opening therethrough to receive the upper terminal of the arm 9. After the arm 9 has been inserted in the coupling 10, the screw 11 is tightened against said arm and thereby rigidly secures the same to the coupling.

The arm 9 may be more or less resilient, and the lower terminal thereof is received in and has secured thereto a clip 13 which is rigidly fastened to the frame 8 intermediate of the ends of said frame.

The end portions of the frame 8 are bent to form upper and under feet 14 and 15, respectively, to which the insulating strip 6 is attached by meansof screw 16 and 17 and nuts 18 and 1 9.' Thus the main portion or body of the frame 8 is behind and somewhat remote from the strip 6 with its coil/Z. The screw 16 is passed? through the and through the foot 14, and the nut 18 is placed on said screw behind said foot and tightened to bind said strip and 'foot together The screw 17 is passed through the strip 6 adjacent to the. lower terminal thereof, and the nut 19 is placed on said screw and tightened against the foot 15 which is between said strip and'nut, whereby said strip and foot are rigidly secured together.

A screw or binding-post 20 is passed through the strip 6 to receive thereon an ordinary nut 21 and a thumb-nut 22 behind said strip. One end of the wire 7 is hooked around the binding-post 20, behind the strip 6 and secured in place by means of the nut 21, said wire is wound around said strip in the usual manner, and the other end of the wire is clamped with the foot 15 between said strip and the nut 19. An electrical conductorv 23 has one terminal wound around the binding-post 2O behind the nut 21, and is there secured by means of the thumb-nut 22 which is screwed on to said binding-post behind said terminal.

The conductor 23 extends from the heating-unit (comprising the strip 6 and winding 7 with connections), to the battery not shown). The current from the battery passes through the conductor 23 to the hinding-post 20. from the latter to and through the coil 7, from said coil to and through the screw 17 to the frame 8. and thence, by way of the arm 9 and the spindle 5. to the frame of the automobile where said current is grounded. The coil 7 affords the necessary resistance to the passage of the electric current to cause said coil to become heated to the required degree.

The coil 7 being close to or in actual contact with the glass 1, causes said glass to become heated or warmed to the extent required for the purpose of dissipating any ice or steam that may have formed or collected thereon, or to prevent the formation or collection of these elements on the glass, at least within the vicinity of said coil.

The arm 9, with its frame 8 and the heating-unit, is caused to oscillate as the spindle 5 is rocked in its bearings, first in one direction andthen in the other, by means of the automatic-cleaner mechanism, with the result that a sufficient area of the plate 1 is kept clear to enable the operator to see through without. obstruction. Similar results are obtained when the heating device is oscillated by the hand of the operator applied to the frame and arm of said device and moved to swing the same on or with its supporting spindle.

If an outside wiper be mounted on the spindle 5, which is assumed to be the case here, said wiper operates against the front side as the heating device operates against the back side of the glass 1.

e are aware that various kinds of electrical devices for heating or warming windshields have been previously invented, and do not. therefore, 'seekto claim such a device broadly; nevertheless, more or less change in the shape, size, construction, and arrangement of some or all of the parts of our device may be made without departing the latter also being provided with a screw to bind said arm thereto, a frame secured to said arm, a heating-unit secured to said frame, and an electrical conductor connected with said heating-unit.

2. Aheating device, of the class described,

.comprising a heating-unit consisting of a of a transparent member.

3. In -a heating device, of the class described, an arm, a frame secured tosa1d arm at one. terminal thereof, and having feet, a bar of insulating material, members to attach said bar to said feet, a wire coil around the outside of said bar and attached at one terminal to one of said members, a bindingpost passing through said bar and having the other terminal of said coil connected therewith, a nut on said binding-post bear.- ing on said coil, a thumb-nut also on said binding-post, and an electrical conductor secured to said binding-post between said nut and thumb-nut, the construction and. arrangement being such that said bar stands clear of said frame except where the bar is attached to said feet.

FRED G. CHASE. WARREN o. MAGRANIS. 

